Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting - Narrative (Details)

v3.23.3
Segment Reporting - Narrative (Details)
3 Months Ended
Mar. 31, 2023
clinic
segment
Dec. 31, 2022
clinic
Mar. 31, 2022
clinic
Dec. 31, 2021
clinic
Segment Reporting Information [Line Items]        
Number of operating segments | segment 2      
Number of non-operating segments | segment 1      
Number of stores 870   736  
Company-Owned or Managed Clinics        
Segment Reporting Information [Line Items]        
Number of stores 130 126 100 96
Franchised Clinics        
Segment Reporting Information [Line Items]        
Number of stores 740 712 636 610